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Debian: New kernel-patch-vserver packages fix root exploit Print E-mail
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Posted by Benjamin D. Thomas   
Debian Updated package.
- --------------------------------------------------------------------------
Debian Security Advisory DSA 1011-1                                       Martin Schulze
March 21st, 2005              
- --------------------------------------------------------------------------

Package        : kernel-patch-vserver, util-vserver
Vulnerability  : missing attribute support
Problem type   : local (remote)
Debian-specific: yes
CVE IDs        : CVE-2005-4347 CVE-2005-4418
Debian Bugs    : 329087 329090

Several vulnerabilities have been discovered in the Debian vserver
support for Linux.  The Common Vulnerabilities and Exposures project
identifies the following problems:


    Bj�rn Steinbrink discovered that the chroot barrier is not set
    correctly with util-vserver which may result in unauthorised
    escapes from a vserver to the host system.

    This vulnerability is limited to the 2.4 kernel patch included in
    kernel-patch-vserver.  The correction to this problem requires
    updating the util-vserver package as well and installing a new
    kernel built from the updated kernel-patch-vserver package.


    The default policy of util-vserver is set to trust all unknown
    capabilities instead of considering them as insecure.

The old stable distribution (woody) does not contain a
kernel-patch-vserver package.

For the stable distribution (sarge) this problem has been fixed in
version of kernel-patch-vserver and in version
0.30.204-5sarge3 of util-vserver.

For the unstable distribution (sid) this problem has been fixed in
version 2.3 of kernel-patch-vserver and in version 0.30.208-1 of

We recommend that you upgrade your util-vserver and
kernel-patch-vserver packages and build a new kernel immediately.

Upgrade Instructions
- --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 3.1 alias sarge
- --------------------------------

  Source archives:
      Size/MD5 checksum:      637 415731be72a9cd966e2fdb5d4f408c4a
      Size/MD5 checksum:   950447 fe6b34612095d2fbdbaab5aefbd83264
      Size/MD5 checksum:      752 e32069a5ca2ef2bc87794cd6c2160821
      Size/MD5 checksum:   115947 d0bb2cd998a73905189ee24b5f46dd0d
      Size/MD5 checksum:   677831 b315f375b1cef48da1b644dec18f22bd

  Architecture independent components:
      Size/MD5 checksum:   436934 b50048ea819d150d660ed96e3988613b

  Alpha architecture:
      Size/MD5 checksum:   600660 e52fe0ff93e4c9ca7d58fe8386ebab5a

  AMD64 architecture:
      Size/MD5 checksum:   429530 c4155982844c085b7d9bc59d7eaa02c4

  Intel IA-32 architecture:
      Size/MD5 checksum:   398794 56831faa6fa6d76c601fee78251f50eb

  Intel IA-64 architecture:
      Size/MD5 checksum:   640332 ab2b2e4283ca5b62c9d9cf5776b6dadb

  Big endian MIPS architecture:
      Size/MD5 checksum:   612918 e4a60532f25ce776880261de79278e85

  Little endian MIPS architecture:
      Size/MD5 checksum:   614152 f3aee29aad2682878f8ed22064f3fafa

  PowerPC architecture:
      Size/MD5 checksum:   425444 9a7542249c2b70661abab2afd5270462

  IBM S/390 architecture:
      Size/MD5 checksum:   440880 376560971a0d2db4bfd51beb67d42bff

  Sun Sparc architecture:
      Size/MD5 checksum:   395640 51e24ac4754b1aa41277378ee9271a1f

  These files will probably be moved into the stable distribution on
  its next update.

- ---------------------------------------------------------------------------------
For apt-get: deb stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list:
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